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Difference between revisions of "Security Architecture Cheat Sheet"

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<b>SECURITY ARCHITECTURE CHEAT SHEET FOR INTERNET APPLICATIONS</b><br/>
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= Introduction =
This cheat sheet offers tips for the initial design and review of an application’s security architecture.<br/>
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This cheat sheet offers tips for the initial design and review of an application’s security architecture.
  
 
= BUSINESS REQUIREMENTS =  
 
= BUSINESS REQUIREMENTS =  
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= INFRASTRUCTURE REQUIREMENTS =  
 
= INFRASTRUCTURE REQUIREMENTS =  
= Network =
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== Network ==
 
* What details regarding routing, switching, firewalling, and load‐balancing have been defined?
 
* What details regarding routing, switching, firewalling, and load‐balancing have been defined?
 
* What network design supports the application?
 
* What network design supports the application?
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* What network performance requirements exist?
 
* What network performance requirements exist?
 
* What private and public network links support the application?
 
* What private and public network links support the application?
= Systems =
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== Systems ==
 
* What operating systems support the application?
 
* What operating systems support the application?
 
* What hardware requirements have been defined?
 
* What hardware requirements have been defined?
 
* What details regarding required OS components and lock‐down needs have been defined?
 
* What details regarding required OS components and lock‐down needs have been defined?
= Infrastructure Monitoring =
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== Infrastructure Monitoring ==
 
* What network and system performance monitoring requirements have been defined?
 
* What network and system performance monitoring requirements have been defined?
 
* What mechanisms exist to detect malicious code or compromised application components?
 
* What mechanisms exist to detect malicious code or compromised application components?
 
* What network and system security monitoring requirements have been defined?
 
* What network and system security monitoring requirements have been defined?
= Virtualization and Externalization =
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== Virtualization and Externalization ==
 
* What aspects of the application lend themselves to virtualization?
 
* What aspects of the application lend themselves to virtualization?
 
* What virtualization requirements have been defined for the application?
 
* What virtualization requirements have been defined for the application?
 
* What aspects of the product may or may not be hosted via the cloud computing model?
 
* What aspects of the product may or may not be hosted via the cloud computing model?
= APPLICATION REQUIREMENTS =  
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= APPLICATION REQUIREMENTS ==  
= Environment =
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== Environment ==
 
* What frameworks and programming languages have been used to create the application?
 
* What frameworks and programming languages have been used to create the application?
 
* What process, code, or infrastructure dependencies have been defined for the application?
 
* What process, code, or infrastructure dependencies have been defined for the application?
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* What capabilities exist to detect the leakage of sensitive data?
 
* What capabilities exist to detect the leakage of sensitive data?
 
* What encryption requirements have been defined for data in transit over WAN and LAN links?
 
* What encryption requirements have been defined for data in transit over WAN and LAN links?
= Access =
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== Access ==
 
* What user privilege levels does the application support?
 
* What user privilege levels does the application support?
 
* What user identification and authentication requirements have been defined?
 
* What user identification and authentication requirements have been defined?
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* What user access restrictions have been defined?
 
* What user access restrictions have been defined?
 
* How are user identities maintained throughout transaction calls?
 
* How are user identities maintained throughout transaction calls?
= Application Monitoring =
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== Application Monitoring ==
 
* What application auditing requirements have been defined?
 
* What application auditing requirements have been defined?
 
* What application performance monitoring requirements have been defined?
 
* What application performance monitoring requirements have been defined?
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* What application error handling and logging requirements have been defined?
 
* What application error handling and logging requirements have been defined?
 
* How are audit and debug logs accessed, stored, and secured?
 
* How are audit and debug logs accessed, stored, and secured?
= Application Design =
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== Application Design ==
 
* What application design review practices have been defined and executed?
 
* What application design review practices have been defined and executed?
 
* How is intermediate or in-process data stored in the application components' memory and in cache?
 
* How is intermediate or in-process data stored in the application components' memory and in cache?
 
* How many logical tiers group the application's components?
 
* How many logical tiers group the application's components?
 
* What staging, testing, and Quality Assurance requirements have been defined?
 
* What staging, testing, and Quality Assurance requirements have been defined?
 +
 
= SECURITY PROGRAM REQUIREMENTS =
 
= SECURITY PROGRAM REQUIREMENTS =
= Operations =
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== Operations ==
 
* What is the process for identifying and addressing vulnerabilities in the application?
 
* What is the process for identifying and addressing vulnerabilities in the application?
 
* What is the process for identifying and addressing vulnerabilities in network and system components?
 
* What is the process for identifying and addressing vulnerabilities in network and system components?
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* What physical controls restrict access to the application's components and data?
 
* What physical controls restrict access to the application's components and data?
 
* What is the process for granting access to the environment hosting the application?
 
* What is the process for granting access to the environment hosting the application?
= Change Management =
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== Change Management ==
 
* How are changes to the code controlled?
 
* How are changes to the code controlled?
 
* How are changes to the infrastructure controlled?
 
* How are changes to the infrastructure controlled?
 
* How is code deployed to production?
 
* How is code deployed to production?
 
* What mechanisms exist to detect violations of change management practices?
 
* What mechanisms exist to detect violations of change management practices?
= Software Development =
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== Software Development ==
 
* What data is available to developers for testing?
 
* What data is available to developers for testing?
 
* How do developers assist with troubleshooting and debugging the application?
 
* How do developers assist with troubleshooting and debugging the application?
 
* What requirements have been defined for controlling access to the applications source code?
 
* What requirements have been defined for controlling access to the applications source code?
 
* What secure coding processes have been established?
 
* What secure coding processes have been established?
= Corporate =
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== Corporate ==
 
* What corporate security program requirements have been defined?
 
* What corporate security program requirements have been defined?
 
* What security training do developers and administrators undergo?
 
* What security training do developers and administrators undergo?
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* What controls exist to protect a compromised in the corporate environment from affecting production?
 
* What controls exist to protect a compromised in the corporate environment from affecting production?
 
* What security governance requirements have been defined?
 
* What security governance requirements have been defined?
 
  
 
= Related Cheat Sheets  =
 
= Related Cheat Sheets  =

Revision as of 23:41, 14 October 2011

Introduction

This cheat sheet offers tips for the initial design and review of an application’s security architecture.

BUSINESS REQUIREMENTS

Business Model

  • What is the application’s primary business purpose?
  • How will the application make money?
  • What are the planned business milestones for developing or improving the application?
  • How is the application marketed?
  • What key benefits does application offer its users?
  • What business continuity provisions have been defined for the application?
  • What geographic areas does the application service?

Data Essentials

  • What data does the application receive, produce, and process?
  • How can the data be classified into categories according to its sensitivity?
  • How might an attacker benefit from capturing or modifying the data?
  • What data backup and retention requirements have been defined for the application?

End‐Users

  • Who are the application’s end‐users?
  • How do the end‐users interact with the application?
  • What security expectations do the end‐users have?

Partners

  • Which third‐parties supply data to the application?
  • Which third‐parties receive data from the applications?
  • Which third‐parties process the application’s data?
  • What mechanisms are used to share data with third‐parties besides the application itself?
  • What security requirements do the partners impose?

Administrators

  • Who has administrative capabilities in the application?
  • What administrative capabilities does the application offer?

Regulations

  • In what industries does the application operate?
  • What security‐related regulations apply?
  • What auditing and compliance regulations apply?

INFRASTRUCTURE REQUIREMENTS

Network

  • What details regarding routing, switching, firewalling, and load‐balancing have been defined?
  • What network design supports the application?
  • What core network devices support the application?
  • What network performance requirements exist?
  • What private and public network links support the application?

Systems

  • What operating systems support the application?
  • What hardware requirements have been defined?
  • What details regarding required OS components and lock‐down needs have been defined?

Infrastructure Monitoring

  • What network and system performance monitoring requirements have been defined?
  • What mechanisms exist to detect malicious code or compromised application components?
  • What network and system security monitoring requirements have been defined?

Virtualization and Externalization

  • What aspects of the application lend themselves to virtualization?
  • What virtualization requirements have been defined for the application?
  • What aspects of the product may or may not be hosted via the cloud computing model?

APPLICATION REQUIREMENTS =

Environment

  • What frameworks and programming languages have been used to create the application?
  • What process, code, or infrastructure dependencies have been defined for the application?
  • What databases and application servers support the application?

Data Processing

  • What data entry paths does the application support?
  • What data output paths does the application support?
  • How does data flow across the application’s internal components?
  • What data input validation requirements have been defined?
  • What data does the application store and how?
  • What data is or may need to be encrypted and what key management requirements have been defined?
  • What capabilities exist to detect the leakage of sensitive data?
  • What encryption requirements have been defined for data in transit over WAN and LAN links?

Access

  • What user privilege levels does the application support?
  • What user identification and authentication requirements have been defined?
  • What user authorization requirements have been defined?
  • What session management requirements have been defined?
  • What access requirements have been defined for URI and Service calls?
  • What user access restrictions have been defined?
  • How are user identities maintained throughout transaction calls?

Application Monitoring

  • What application auditing requirements have been defined?
  • What application performance monitoring requirements have been defined?
  • What application security monitoring requirements have been defined?
  • What application error handling and logging requirements have been defined?
  • How are audit and debug logs accessed, stored, and secured?

Application Design

  • What application design review practices have been defined and executed?
  • How is intermediate or in-process data stored in the application components' memory and in cache?
  • How many logical tiers group the application's components?
  • What staging, testing, and Quality Assurance requirements have been defined?

SECURITY PROGRAM REQUIREMENTS

Operations

  • What is the process for identifying and addressing vulnerabilities in the application?
  • What is the process for identifying and addressing vulnerabilities in network and system components?
  • What access to system and network administrators have to the application's sensitive data?
  • What security incident requirements have been defined?
  • How do administrators access production infrastructure to manage it?
  • What physical controls restrict access to the application's components and data?
  • What is the process for granting access to the environment hosting the application?

Change Management

  • How are changes to the code controlled?
  • How are changes to the infrastructure controlled?
  • How is code deployed to production?
  • What mechanisms exist to detect violations of change management practices?

Software Development

  • What data is available to developers for testing?
  • How do developers assist with troubleshooting and debugging the application?
  • What requirements have been defined for controlling access to the applications source code?
  • What secure coding processes have been established?

Corporate

  • What corporate security program requirements have been defined?
  • What security training do developers and administrators undergo?
  • Which personnel oversees security processes and requirements related to the application?
  • What employee initiation and termination procedures have been defined?
  • What application requirements impose the need to enforce the principle of separation of duties?
  • What controls exist to protect a compromised in the corporate environment from affecting production?
  • What security governance requirements have been defined?

Related Cheat Sheets

OWASP Cheat Sheets Project Homepage


Authors and Primary Editors

Lenny Zeltser